MESON Chess Problem Database

Problem Display
PID: 108497 (8/3Q4/B7/8/Pk6/1p6/1N6/2K5 w - - 0 1)

Juk, Aleksandr I

Za Ogneypori, 1988

8/3Q4/B7/8/Pk6/1p6/1N6/2K5

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qd2#
    • 1...Ka5
      • 2.Qb5#
  • Tries
    • 1.Sd3+?
      • 1...Kc3
        • 2.Qg7#
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
    • 1.Sc4?
      • 1...Kc3
        • 2.Qd2#
      • 1...Kc5
        • 2.Qd6#
      • 1...b2+!
    • 1.Qb5+?
      • 1...Kc3
        • 2.Qc4#
        • 2.Qc5#
      • 1...Ka3!
    • 1.Qf5?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ka3!
    • 1.Qc6?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka3!
    • 1.Qd5?
      • 1...Kc3
        • 2.Qc4#
        • 2.Qd2#
        • 2.Qc5#
      • 1...Ka3!
    • 1.Qd6+?
      • 1...Kc3
        • 2.Sd1#
        • 2.Qc5#
        • 2.Qd2#
      • 1...Ka5!
    • 1.Qe7+?
      • 1...Kc3
        • 2.Qc5#
      • 1...Ka5!
  • Keys
    • 1.a5!
      • 1...Ka3
        • 2.Qa4#
      • 1...Kc3
        • 2.Qd2#
      • 1...Kxa5
        • 2.Qb5#
      • 1...Kc5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(E)
    • K(b);S_FLIGHT::QAR1(E)
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB(E)
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • P(a);CHECK
    • Try
      • Q(E);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(b);S_FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • P(C);
    • Vars
      • K(b);S_FLIGHT::QAR1(E)
      • K(b);S_FLIGHT::QAB1(E)
      • K(b);S_FLIGHT,XP(C)::QAR1(E)
      • K(b);S_FLIGHT::S(B)
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